The renegades will renegade regardless. The problem with this is that it doesn't really address the two situations well. That being your basic parish church with no need for a seperate Eucharistic chapel and a larger more busy Cathedral or historically significant or touristy church that is too active to allow private Eucharitic adoration, where a smaller chapel makes sense.
In any event, the priest mentioned above is being dishonest in telling his flock that the new GIRM is requiring him to move the tabernacle. Which was my original point.
SD